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Keyboard AI
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AI Writing Assistants (358)

Keyboard AI Verified Tool

Keyboard AI is a mobile reply and writing assistant that works through a system keyboard. Users should verify every message, review full-access and data permissions, avoid entering passwords or sensitive content, and check trial and subscription renewal.

Last Update: August 20, 2026

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Starting price Free + from $1.99/mo

Tool Information

Keyboard AI is a mobile reply and writing assistant that works through a system keyboard. Users should verify every message, review full-access and data permissions, avoid entering passwords or sensitive content, and check trial and subscription renewal.

Begin with a small, reversible test using only authorized and necessary inputs. Configure privacy, access, quality, export, disclosure, and spending controls; compare results with original sources and representative benchmarks; correct errors; and keep a responsible person in control before publishing, deploying code, sending messages, changing records, or making consequential decisions.

The app is free to download with premium access starting from $1.99 per month. Region, trial, features, and renewal vary.

AI output and automated actions can be inaccurate, biased, incomplete, unsafe, stale, or misleading, while services may process confidential, copyrighted, personal, health, financial, or regulated information. Check consent, retention, model-training, licenses, anti-spam and platform rules, renewal terms, accessibility, and security, and use qualified human review for high-impact work.

F.A.Q (3)

Keyboard AI is a mobile reply and writing assistant that works through a system keyboard. Users should verify every message, review full-access and data permissions, avoid entering passwords or sensitive content, and check trial and subscription renewal.

Begin with a small, reversible test using only authorized and necessary inputs. Configure privacy, access, quality, export, disclosure, and spending controls; compare results with original sources and representative benchmarks; correct errors; and keep a responsible person in control before publishing, deploying code, sending messages, changing records, or making consequential decisions.

Verified pricing: Free + from $1.99/mo. The app is free to download with premium access starting from $1.99 per month. Region, trial, features, and renewal vary.

Pros and Cons

Pros

  • ReplyAssistant adds AI writing actions to the keyboard used across iPhone and iPad apps
  • Grammar Check reviews typed text before it is sent
  • Paraphrase rewrites a passage for clarity or variety
  • A synonym tool helps users choose more precise wording
  • Continue can extend text the user has already started
  • Translation operates without leaving the current conversation
  • Users can create reusable custom prompts for keyboard access
  • The Write screen drafts emails or messages at a chosen length and tone
  • Reply generates a response based on an incoming message
  • Reply modes include interested; uncertain; and decline-oriented responses
  • A prompt can specify how the assistant should answer a particular message
  • ChatPDF answers questions and creates summaries from uploaded documents
  • Reply history makes earlier generated text easier to revisit
  • The app supports iPhone; iPad; Apple-silicon Mac; and Apple Vision devices
  • The monthly Pro purchase is inexpensive at 1.99 dollars
  • The developer continued releasing compatibility and ChatPDF fixes through October 2025

Cons

  • AI keyboard processing can expose selected text; messages; and drafts to an external model service
  • Apple's data-not-collected label does not mean text sent to the ChatGPT API stays on the device
  • Users should not submit passwords; health records; legal advice; or confidential work messages
  • Generated replies can misread relationship context; sarcasm; urgency; or consent
  • Grammar and paraphrasing can change the intended meaning
  • Translation needs review for names; idioms; formal register; and high-stakes instructions
  • ChatPDF answers can overlook tables; scans; footnotes; or contradictory passages
  • Uploading a PDF may disclose an entire sensitive document
  • The interface supports fewer listed languages than the translation feature's target set
  • A third-party keyboard may require broad system permissions to work across applications
  • The app previously logged repeated fixes for incorrect usage-limit errors
  • ChatPDF required several consecutive fixes in 2025
  • The app uses in-app subscriptions despite being free to install
  • The 19.99-dollar yearly plan is paid in advance
  • Model availability; limits; and quality depend on the upstream ChatGPT API
  • AI-generated text still needs a human check before professional or consequential use

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